Improvement in machines for folding carpet-linings



To all whom it may concern.-

UNITED STATES JOHN G. MAYALL, OF BOSTON, MASSACHUSETTS.

IMPRGVEMENT IN MACHINES FQR FOLDlNG CARPET-LINlNGS.

Specificat:on forming part of Letters Patent No. 116,467, dated June/27, 1871.

Be it known that I, JOHN C. MAYALL, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Machines for Making Underlinin gs for Carpets; and that the following is a full and exact description of the same, reference being had to the accompanying drawing forming apart hereof.

This invention relates to a machine for the manufacture of an underlining for carpets, or what is commonly called carpet-lining',-for which I have already made application for Letters Patent of the United States. This invention consists of atable, along and over which, from end to end, the paper sheet, with the batting, is dragged, and of a core or former tapering from end to end, which core is disposed above the said table, and is constructed and provided with a series and system of rollers to seize and pull upon the edges of the paper sheet, and to thereby produce a folding over of the paper sheet upon the batting, inclosing it therein, as desired.

In the accompanying drawing my improve ments in making carpet-lining are illustrated- Figure 1 being a plan or top view of a machine arranged according thereto; Fig. 2,'acentral longitudinal vertical section; Figs. 3 and 4t, trans verse vertical sections in planes of linesw wandyy, respectively; Figs. 5, o, and 7, views indetail or the arrangement of the rollers for seizing the paper sheet and folding it over; Fig. 8, a view in detail of a pasting-roller; Fig. 9, a view in crosssection of the underlining.

Ain the drawing represents a frame-work, consistin g of longitudinal beams B, braced by crossbeams G, and provided with posts D at suitable points, carrying and supporting a table or platform, E. Along the sides F of this table E are arranged posts G, supporting and carrying an upper frame-work, H, from which, by stanchions I at suitable points, is suspended a frame, J, just above the upper surface of table E, and extending horizontally along the length of the same. This frame J is the center core or former of the machine, and is constructed uponeach edge a of a similar taper, slightly concaving, from end to end, (see Fig. 1,) with its end K, Wherethe paper enters thereon, the Wider. The

edges a of the core-frame J are both provided along their length with a flange, b, projecting downward; and at'various 'points along the length of the core-frame J there are arranged rolls 0 within the thickness of the frame, but proiectin g slightly above the upper surface thereof.

These rolls 0 are, by their journals, arranged to turn in bearings of plates d, constructed with acircular or arc-shaped slot, f, through which, by screws g, the plates d are secured to and within the core-frame J. By this arrangement and construction of the bearings dfor the rolls cit is obvious that the rolls are rendered susceptible of adjustment and set in the former-frame J, as, y

is, with the outer end in the advance. The rolls a, as shown in the drawing, are six in numberthree upon each side of the center liiie of the former, and in planes directly opposite to each other; and the several sets are arranged, respectively, at different distances from the center line of the former, with the two of each set, however, equally distant, as is plainly shown in the drawing, Figs. 1, 2, and 4, more particularly. Corresponding to each roll'c a similar roll, it, issuspended from the upper framework H. The rolls It in cachinst-ance are suspended within and between the bifurcated ends 43 of stanchions L, secured by their screw-bolts la and nuts I in the cross-pieces M ,of upper frame-work H. The journals of the rolls h are hung within stems m, arranged to have an upward-and-downward play within the upright sockets of bifurcated ends i, so that the rolls h, when in position, can rest upon the roll 0 corresponding thereto arranged within the former J. (See Figs. 2, 3, and 4 more particularly.) Fora complete illustration of the hanging of the two rolls a h for each set, see Figs. 5, 6, and 7. The stanchions L are in twoparts, secured together by slot and set-screw, (see Fig.

5,) so as to allow their length to be increased or decreased, as may be required. By loosening the nuts L the stanchions L are susceptible of. being turned to adjust the angle of the roll carried by them with reference to the center line of the former J, and to correspond with the plane' of adjustment of the rolls a in former J. N is a PATENT OFFICE- roll of paper, placed at the end K of the machine, and T a roller arranged to turn within a pastetank, 0, a roll, P, resting upon its upper side. Between the two rolls T and P the paper from the paper roll N is conducted, and thence up around and over the upper side of the roll P to and along the table, under the former J, out at the end Q of the machine, between rolls It It'ar-v ranged thereat. By the roll T paste from the tank is transferred to the paper along its center, wheroon the lap or bat is to lie; and for the'purpose of depositing the paste on the paper in spots, in lieu of a sheet form, the rolllT is conducted with depressions p, and a stationary scraper is arranged to scrape from the raised portions of the roll T the paste thereon, leaving the paste in the depressions 19, from which it is transferred to the paper by the pressure of the roll P on the paper sheet, which, as before stated, passes between the roll P and the paste-ro1l T. In disposing the paper sheet on the table E its edges are laid between the series of rolls described, so that bringing tension and power to bear through the rolls R or otherwise sufficient to draw the paper along by means of rolls 0 and h, an additional tension is brought on the paper edges, drawing them in, and thus producing a folding over of the same upon the former J to a greater or less extent, according to the width of the paper sheet used, and, if sufficiently wide, overlapping them, so that when the paper sheet escapes from the machine it will be doubled upon itself. it is a spindle or rod, suspended across the machine at the end K. On this spindle t is wound a previously-prepared continuous sheet-bat or lap, V, composed preferably of loose fibrous materials, such as cotton; but it might be of material felted. This bat or lap V is conducted from the spindle t to and upon the paper sheet at the point, or near thereto, where it commences to pass upon the table E,and as such paper is prepared with paste it adheres thereto and passes along and in conjunction with the paper sheet. As the former J is provided with downward-projecting flanges, sufficient space is left for the lap or bat placed on the paper sheet as it enters the machine, which bat, provided its width relative to the width of the paper is proper, by the operation of the machine above described will be inclosed within the folded paper sheet. In lieu of preparing a lap and placing it in the machine, as described, a machine, such as is known as a cotton-lapper, may be arranged to work in conjunction with the lining machine, and, .being placed in suitable position at the end K, can cause a direct continuous delivery of the lap upon the paper sheet at the point stated for the prepared lap. The'overl'apping edges of the paper sheet may be secured together by pasting, or by stitching through the whole thickness of the paper sheet andbat, or they may be left loose; but it is best to seal them in some manner. And, furthermore, in lieu of securing the bat to the paper sheet by pasting, it may be secured by stitchin g, or left loose thereon. In the practical manufacture of the lining no means of fastening the same to the paper sheet are employed, and a machine substantially such as herein described is found to work practically and successfully in producing a progressive complete inclosure of a bat within a paper sheet in the joint passage of the paper sheet and bat or lap-sheet from one end of the'machine to the other.

It may be well to here observe that it is not intended to be limited to six sets of rolls, 0 h, as their number depends, in a great measure, upon the width of paper to be folded. The table E may be variously constructed to obviate friction on the paper drawn over it, as, for instance, con structed with frictional rolls, and the same remark will apply to the former J.

Having thus described my invention, I shall state my claim, as follows:

The combination of table E with the former J, having rolls 0 and rolls h relatively constructed and arranged for operation, substantially as and for the purpose set forth.

The above-specification of my invention signed by me this 1st day of November, 1870.

J OHN G. MAYALL.

Witnesses: EDWIN W. BROWN,

ALBERT W. BROWN. 

